Phanerotoma thoracica, Luo & Achterberg & He & Tang & Chen, 2025

Luo, Wen-Juan, Achterberg, Cornelis Van, He, Jun-Hua, Tang, Pu & Chen, Xue-Xin, 2025, Revision of the genus Phanerotoma Wesmael (Hymenoptera, Braconidae, Cheloninae) from China, with descriptions of twenty-four new species, European Journal of Taxonomy 1003, pp. 1-110 : 82-84

Phanerotoma thoracica sp. nov.

urn:lsid:zoobank.org:act:54A1C4B8-8EE1-4833-9525-9C9A1B59D0D5

Fig. 33

Diagnosis

Vein 2-SR of fore wing anteriorly diverging from posterior side of pterostigma, gap comparatively wide and distinctly narrowed anteriorly ( Fig. 33F ); vein 1-CU1 of fore wing 0.4 × as long as vein 2-CU1; face largely granulate-rugose and transversely rugose medio-posteriorly, with median bump ( Fig. 33D ); lower tooth of mandible minute ( Fig. 33K ).

Differential diagnosis

Very similar to P. bilinea Lyle, 1924 , but this species has the lower tooth of the mandible medium-sized ( van Achterberg 1990: fig. 269).

Etymology

Named after the yellow mesosoma, from the Latin ‘ thorax ’ for ‘breast’.

Type material

Holotype

CHINA – Zhejiang • ♀; Tianmu Mt. ; 20 Jul. 1998; Mingshui Zhao leg.; ZJUH No. 20000912.

Paratypes (28 ♀♀)

CHINA – Zhejiang • 1 ♀; same data as for holotype; 1 Aug. 1998; Mingshui Zhao leg.; ZJUH No. 20002959 • 1 ♀; same data as for preceding; 14 Nov. 1998; Mingshui Zhao leg.; ZJUH No. 20003133 • 5 ♀♀; Anji, Longwang Mt. ; 20 Sep. 2004; Xuexin Chen leg.; ZJUH Nos 20050002, 20050006, 20050010, 20050012, 20050023 • 2 ♀♀; same data as for preceding; Belokobylskij leg.; ZJUH Nos 20050021, 20050030 • 1 ♀; Linan, Qingliangfeng ; 7 Aug. 2005; Hongying Zhang leg.; ZJUH No. 200603195 • 2 ♀♀; Taishun, Wuyanling ; 31 Jul. 2005; Shujun Wei leg.; ZJUH Nos 200605151, 200605153 • 1 ♀; Anji, Longwang Mt. ; 20 Sep. 2004; ZJUH No. 20050016 . – Xizang Zizhiqu • 1 ♀; Linzhi, Bomigang Village ; 8 Aug. 2019; Pu Tang leg.; ZJUH No. 202300029 . – Guizhou • 2 ♀♀; Du Mt. ; 6 May 1980; Shengzhen Zhou leg.; ZJUH Nos 860586, 860176 • 1 ♀; Chishui, Gangou ; 29 May 2000; Yun Ma leg.; ZJUH No. 200102959 • 1 ♀; same data as for preceding; [on] Alsophila spinulosa ; 21 Sep. 2000; Yun Ma leg.; ZJUH No. 200103256 . – Shaanxi • 1 ♀; Luonan, Shangluo ; 34°82′ N, 110°19′ E, elev. 1006 m; 9 Jul.–9 Sep. 2017; Jiangli Tan and Qingqing Tan leg.; ZJUH . – Henan • 1 ♀; Jigong Mt. ; 11 Jul. 1997; Xuexin Chen leg.; ZJUH No. 973710 • 1 ♀; Jigong Mt. ; 11 Jul. 1997; Xuexin Chen leg.; ZJUH No. 973934 • 2 ♀♀; Fangxian ; 23 Aug. 1982; Junhua He leg.; ZJUH Nos 82322, 826976 • 1 ♀; Zhu Mt. ; 28 Aug. 1982; Junhua He leg.; ZJUH No. 824807 . – Hebei • 1 ♀; Wudang Mt. ; 17 Jul. 1997; Yuzhou Du leg.; ZJUH No. 975107 . – Fujian • 3 ♀♀; Jiangle, Longxi Mt. ; 8 Jul. 1991; Changming Liu leg.; ZJUH Nos 969015, 969017, 20006524 .

Description

Female

MEASUREMENTS. Length of body 3.0 mm, of fore wing 2.7 mm.

COLOURATION. Yellow; stemmaticum dark brown; third tergite brown; hind tibia laterally brown and ventrally brownish.

HEAD. Width 1.6× median length in anterior view ( Fig. 33D ) and part of head above eye in lateral view 0.2× height of eye ( Fig. 33C ); antenna with 23 segments, 1.2× as long as fore wing, five subapical segments moniliform ( Fig. 33E ); area of stemmaticum mainly granulate; OOL: diameter of posterior ocellus: POL=21: 6: 7; eye 1.5× as long as temple in dorsal view ( Fig. 33B ); frons punctate-rugose medially, rugose laterally and with weak median ridge; vertex granulate-rugose and with satin sheen; temple largely striate and with satin sheen; face largely granulate-rugose and transversely rugose medio-ventrally, with median bump dorsally; clypeus smooth and shiny, 0.9 × minimum width of face, intertentorial distance 2.4× minimum width between clypeus and eye, clypeus long erect setose and with 3 indistinct teeth medio-ventrally ( Fig. 33D ); eye large, in lateral view 1.9 × as wide as temple ( Fig. 33C ), in anterior view its height 0.8× minimum width of face; upper condyle of mandible close to lower level of eyes ( Fig. 33E ); malar space short, 0.6× as long as basal width of mandible; lower tooth of mandible 0.3 × length of apical tooth, short and minute ( Fig. 33K ).

MESOSOMA ( Fig. 33G ). Length 1.5× its width in lateral view; side of pronotum mainly rugose, but dorsally nearly smooth; mesoscutum densely rugose and rather shiny, densely setose; notauli hardly indicated; scutellar sulcus wide ( Fig. 33G ); scutellum triangular, flat, granulate-rugose and rather shiny; metanotum with short median carina anteriorly and small protruding tooth posteriorly; propodeum coarsely reticulate-rugose, no lateral tubercles or transverse and median carinae.

WINGS. Fore wing 3.0× as long as its maximum width; 1-R1 1.4× as long as pterostigma; r of fore wing 0.3× as long as 3-SR; distance between 1-R1 and wing apex 0.4× 1-R1; 2-SR curved ( Fig. 33F ); SR1 straight; 2-SR+M present; pterostigma large, parastigma small; 1-CU1 0.4× as long as vein 2-CU1, cu-a oblique and as long as 1-CU1; r: 3-SR: SR1=6: 20:76; 2-SR:3-SR: r-m =33: 20: 11; 2-M bent ( Fig. 33F ).

LEGS ( Fig. 33J ). Hind femur with satin sheen, 3.4× as long as wide and widened submedially; hind tibia rather swollen; middle tibia with medium-sized pale-yellow blister; hind coxa smooth and shiny.

METASOMA ( Fig. 33H–I ). Carapace elliptical in dorsal view, 1.7× as long as wide and 1.1 × as long as mesosoma; first and second tergites coarsely and densely longitudinally rugose; second suture narrow; third tergite as long as second tergite and laterally weakly curved, in dorsal view densely rugose and truncate ( Fig. 33H ), lateral lamella wide, with shallow emargination; ovipositor sheath narrow and long ( Fig. 33I ), with some long erect setae; hypopygium protruding apically in ventral view, spine-like in lateral view ( Fig. 33I ).

VARIATION. Length of fore wing 2.5–3.0 mm; eye 1.3–1.7× as long as temple in dorsal view; 1-R1 1.3–1.5 × as long as pterostigma; hind femur 3.3–3.8 × as long as wide; metasomal carapace 1.6–1.8 × as long as wide.

Male

Unknown.

Host

Unknown.

Distribution

China (Xizang Zizhiqu, Zhejiang, Henan, Guizhou, Shaanxi, Hubei, Fujian).

Figures

Fig. 33. Phanerotoma thoracica sp. nov., holotype, ♀ (ZJUH No. 20000912). A. Habitus, lateral view. B. Head, dorsal view. C. Head, lateral view. D. Head, anterior view. E. Antenna, lateral view. F. Fore wing. G. Mesosoma, dorsal view. H. First third of metasomal tergites, dorsal view. I. Metasoma, lateral view. J. Hind leg. K. Mandible, ventral view. Scale bars: A–J=1 mm; K= 0.2 mm.